Method and apparatus for pumping oil-wells.



J. D. DINsMooR. METHOD AND APPARATUS FOB. PUMPING OIL WELLS:

. APPLICATION FILED JULY 23, 1909. 962,009.

Patented June 21, 1910.

UNITED srrns JAMES D. DINSMOOR, OF ST. MARYS, WIEST VIRGINIA.

METHOD `AVND APIARATUS FOR PUMPING OIL-WELLS.

Specification of Letters Patent.

Patented June 21, 1910.

Application filed July 28, 1909. Serial No. 509,089.

provement in the art and apparatus therefor.'

It is known that the vapors and gases, which are found with the oiltend, to a greater extent in t-he deeper wells, to obstruct the flow ofthe oil, unless these vapors and gases are permitted freely to escape.l

This escape, however, involves a loss of the yaporsl-vangigases.- l Thefob]ect.,fo:t my invention is first to remove .thefvapors and ases, sothat the oil may b e freely and ful y pumped; and in the second place,to conserve the' vapors and gases, so that they may be utilized; andfinally and coincidentally with the securing of the second object, Isave other elements of the oil left in the pumping, in the stratum fromwhich the oil is drawn.

While I do not conine myself to any special form of apparatus, I haveshown, in the"y accompanying drawing, in diagrammatic form, anapparatusin place, well adapted to carry out my methods, whichconstitute the main art of my invention., 1 In t is drawing, Arepresents an upper, and B a lower stratum of oil bearing material, suchas sand rock or shale. The boring or wellis indicated at D. In this isplaced a large pipe 2, extending near to the ottom of the well, andhaving a gastight packing 3 at its lower end on the outside, so that theases or vapors, risin from the stratum for exam le) into whlch the wellopens, will all'be irected into the large pipe 2. The upper end of thispipe opens 1nto a gastight 21:1 4, from which extends a ipe 5, to ap p6, whereby .the gases an vapors are exhausted from the well, and L theoil, having been freed from the obstruct1on of the co umn of such gasesand vapors, 1s fieelgl pumped bymeans of any ordinary pump p to 1ts tank8, the pump 7 passing centrally wlth gastight joints through the box andlarge. pipe 2.-

It will be observed that the pipe of the pump 7 extends into the.cavity'below the mouth of the gas pipe D, so that the oil, by itsgreater specific ravity, is below the gas exit, and free there rom. .Theoil pump and the gas and vapor ump work independently and draw from dierent points, the one from the point of communicationvwith the vaporsand gases, and the other from that of the oil.

It is also known that many wells in the same neighborhood, areexhausted, while others continue to flow. These emptywells,

and the strata with which they communicate, I utilize for theconservation of the gases pumped from flowing wells. Such empty wellsare shown at E and F, one in stratum A, and the other in stratum B. Inthese I place respectively, the large gas pipes such as that shown at 2,constructed and packed in place in the way above described. g To thesepipes are extended from the forcing side of the pump, a pipe 8, withbranches 9,

whereb the ases or vapors, drawn from the active wel are forced into thestratum or strata, which had been exhausted, and thus, without materialexpense, these gases and vapors, are-conserved, and may be retainedindefinitely, for subsequent use. I

find also, that the gases and vapors, thus forced into the exhaustedwell, and its connected stratum, find therein residue such as benzin,naphtha, and gasolene, and these the vapor or gas takes up, so that uponpumping them out these residual elements are saved, since they may bethus easily recovered, I

I claim The apparatus herein described consisting of a as or vapor pipein connection with the oiI and gas strata, an oil pipe extending belowthe end ofthe gas pipe, a pumping device for the oil, a as dischargingpipe leading to an indepen ent exhausted 011 or gas strata, and anintermediate pipe line etween the gas pipe of the active well and thedischarge pipe of the abandoned well, with means for forcing the gasinto the abandoned well, substantially as described. i

In testimony whereof, I atHx my signature in presence of two witnesses.f

HENRY E. COOPER, WALTER DONALDSON.

